I just don't feel at ease with them anymore, because I don't believe they are that sincere.
I actually feel way more at ease with Metallica's current live performances than the earlier ones. They've always been a great live band, but in the 80s Hetfield put too much of an emphasis on saying "f*ck" and acting evil for my tastes. Of course they are musically unpredictable, but they're sneaking their way into my favorite band list (I recall being on your side of a Metallica debate a few months ago and saying that they wouldn't even get into my top 10 favorite bands, they are currently in my top 5). Whether or not they actually are, the band has done a very good job of convincing me that they are sincere. I just watched
Quebec Magnetic today, and I'll tell you, as far as I'm concerned James is all heart.
And in response to the actual topic, in terms of actual numbers, Metallica certainly is the biggest band that can unquestionably be called a metal band currently. And they are a metal band. The first five albums and
Death Magnetic are metal albums, like them or not, and though I haven't heard all of their other albums, from what I've heard the
Load twins are the only albums by Metallica that are not metal. Again, like it or not,
St. Anger is metal. Given that a clear majority of their discography (7/9 non-cover studio albums) is indisputably metal, we can safely call Metallica a metal band. And they pack the crowds in, even more so than Maiden right now. Yes, Maiden is the better band (IMO), but Metallica is the bigger band. GNR seems to straddle the line, and I don't have enough knowledge of their discography to correctly place them. I would definitely say their genre is in question. Metallica's is not, making them, again, the biggest
unquestionably metal band in the world.
Wouldn't it be funny if the OP was asking about big as in number of members? Given that Maiden has six members, they would certainly be a candidate for biggest metal band. Someone should look into this if they're bored or something. By the way, I nominate Rush for smallest band member to instrument ratio. And my tangent shall be stopped here.